电流接触器

例句：

1. 1. The circuit breaker is used to protect the electrical system from overloads.
   断路器用于保护电气系统免受过载。
2. 2. The contactor switches on and off the lights in response to a remote control signal.
   接触器根据遥控信号来控制灯的开闭。
3. 3. The current contactor ensures that the power supply is stable during operation.
   电流接触器确保在操作过程中电源供应稳定。